Command queue

At the heart of it, Mina is merely sugar on top of Rake to queue commands and execute them remotely at the end. Take a look at this minimal deploy.rb configuration:

# config/deploy.rb
set :user, 'john'
set :domain, 'flipstack.com'

task :logs do
  queue 'echo "Contents of the log file are as follows:"'
  queue "tail -f /var/log/apache.log"
end

Once you type mina logs in your terminal, it invokes the queued commands remotely on the server using the command ssh john@flipstack.com.

$ mina logs --simulate
# Execute the following commands via
# ssh john@flipstack.com:
#
echo "Contents of the log file are as follows:"
tail -f /var/log/apache.log